Article - 2 (RT)

Question 1

A lead symbol “B,” with minimum dimensions of _______ in height and _________ in thickness

Answer 1

1/2 in. (13 mm) , 1/16 in. (1.5 mm)

Question 2

Densitometers shall be calibrated at least every ________days

Answer 2

90

Question 3

Densitometers:
Periodic calibration verification checks shall be performed as described in T-262.1 at the beginning of ________whichever comes first

Answer 3

each shift, after 8 hr of continuous use, or after change of apertures

Question 4

Where inaccessibility prevents hand placing the IQI(s) on the source side, the IQI(s) shall be placed on the film side in contact with the part being examined. A lead letter “___” shall be placed adjacent to or on the IQI(s), but shall not mask the essential hole where hole IQIs are used.

Answer 4

F

Question 5

All radiographs shall be free from ____________ to the extent that they do not mask and are not confused with the image of any discontinuity in the area of interest of the object being radiographed.

Answer 5

mechanical, chemical, or other blemishes

Question 6

Density Limitations: 1.8 minimum for single film viewing

for radiographs made with an ______ The maximum density shall be 4.0 for either single or composite viewing

Answer 6

X-ray source

Question 7

Density Limitations: 2.0 minimum for single film viewing

for radiographs made with an ______ The maximum density shall be 4.0 for either single or composite viewing

Answer 7

gamma ray source

Question 8

For composite viewing of multiple film exposures, each
film of the composite set shall have a minimum density
of ________

Answer 8

1.3

Question 9

The density of the radiograph anywhere through
the area of interest shall not (1) vary by more than _____________ from the density through the body of the designated hole-type IQI adjacent to the essential hole or adjacent to the essential wire of a wire-type IQI

Answer 9

minus 15% or plus 30%

Question 10

If a light image of the “B,” as described in T-223, appears on a darker background of the radiograph, protection from backscatter is insufficient and the radiograph

Answer 10

unacceptable

Question 11

Where are hole type |Q| placed when radiographing welds(1st choice)

Answer 11

adjacent to or on the weld but not in the area of interest (when possible)

Question 12

Where are location markers placed if they are to appear as a radiographic image ?

Answer 12

Where are location markers placed if they are to appear as a radiographic image ?
on the part to be radiographed

Question 13

|Q| is normally placed on which side of a part?

Answer 13

the source side expert when in accessibility prevents hand placement on that side.

Question 14

What designation is used to indicate the |Q| is on the film side?

Answer 14

a lead letter “F” placed next to or on the IQ

Question 15

How many |Q|s should appear on each radiograph?

Answer 15

it depends on the configuration used to set up the shot( panoramic multifilm, single shots , etc….)

Question 16

Shims may be placed under |Q|s to stimulate weld reinforcement to assure the density in the area of interest is no more than ______ lighter than the density through the |Q|.

Answer 16

15%